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APNIC/mou mio MAY 5, 191er 1,365,598, Patented Jan. 11, 1921.

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UNITED STATES PATENT OFFICE.

CYRUS S. OLDROYD. OF KNOXVILLE. TENNESSEE.

MINING-MACHITE.

Application filed May 5,

To all whom t may concern:

Be it known that l, CYRUs S. OLoRoYD, a citizen of the United States, residing at Knoxville, in the county of Knox and State ot Tennessee, have invented a new and usetul Improvement in Mining-Machines. ot which the following is a specilication, reterence being had to the accompanying drawing.

My improvement relates particularly to machines used Yfor cutting into upright Talls of coal.` rock` or similar material, the machine comprising cutting means actuated by the machine and projected endwise into the wall ot coal, or other material, and then moved sidewise to make a sweeping cut.

The object ol my improvement is to provide a machine by which the cutting means may be made to cut kert's into the wall as i'ollows: (1) horizontally along the floor level and horizontally at other levels as high as the machine can reach: (2) vertically and parallel to tlul general i'orward course oi the machine within a certain range and diagonally to said course within a more extended range; (3) obliquely toward the right or toward the left within a certain range', annularly around a horizontal axis which is parallel to the forward course of the machine; and (i) in a variety of curves.

Another object of the invention is to provide mechanism comprising cutting mechanism which may bc lowered below anil raised above the level of the track supporting the machine and operated for cutting in such` lav position. in order that the under-cutting may be at the level ot the floor upon which the track rests.

By way ot general statement. it may be said that the n'iachine consists of (l) a truck having a rigid frame or body and having sulil'ioiting or traction wheels adapted to rest on an ordinary rail track or on a floor; (2) a longitudinal body supported by the truck and movable up and down thereon; (2l) a neck located at the tront ot said movable body and rotatable on a harivontal axis extending lengthwise ot' the machine and approximately in an upright plane cutting midway between the track rails; (4) a head lsupported upon the neck and rotatable thereon on an axis which is perpendicular Specification of Letters Patent.

1916. serial No. 95.690.

to the axis upon which the neck rotates; (5) a tongue comprising a cutting mechanism support and cutting mechanism, said support being supported upon said head for movement toward and from the axis of rotation of said neck, whereby the cutting mechanism, supported by said support, is supported in substantially horizontal position and movable bodily toward and from the axis ot rotation of the neck and for bodily orbital movement around said axis.

The truck, body, neck, head, and said support and the cutting means being thus related to each other, the cutting means may be put into a variety of positions and through a variety of movements while it is cutting, as will hereinafter be described.

lin the accompanying drawings,

Figure 1 is an elevation of the right-hand side of a machine embodying my improvement;

Fig. 2 is a plan of the same machine; Fig. 3 is a front elevation, the cutting tool being broken away;

Figs. 4a and 4b are an upright section on the line, 4 4, of Fig. 2, looking in the direction ot the arrow. the section occupying two sheets, Fig. 4b being a continuation rightward oi' the structure shown in Fig. 4a;

Fig. 5 is a plan of the truck platform, one ot the upright side members being attached to the platform;

Fig. 6 is an elevation of the right-hand side of said platform;

Fig. 7 is a plan of the body of the machine separated trom the truck and other parts;

Fig. 8 is an elevation of the right-hand side of said body;

Fig. 9 is an upright, transverse section on the line, 9-9, of Figs. 7 and 8, looking toward the right;

Fig. 1() is a front elevation of the body shown in Figs. 7 and 8, portions being broken away;

Fig. 11 is a bottom view of the top plate of the body of the machine;

Fig. 12 is an elevation of the right-hand edge of said plate;

Fig. 13 is an elevation of the front end of said plate;

Fig. 14 is a longitudinal upright section on the line, 111-14, of Figs. 11 and 13;

Fig. 15 is an upright transverse section on the line, 15-15, of Figs. 11, 12 and 14;

Fig. 16 is a horizontal section on the line, 16-16, of Figs. 15 and 1b looking down- Ward;

Fig. 17 is a horizontal section on the line, 17-17, of Fig. 4a;

Fig. 18 is an upright, transverse section on the line, 18-18, of Fig. 45;

Fig. 19 is an upright section on the line, 19-19, of Fig. 17;

Fig. 2O is a horizontal section on the line, 20-20, of Fig. 18, looking downward;

Fig. 21 is a horizontal section on the line, 21-21, of Fig. 18, looking downward;

Fig. 22 is an upright, longitudinal, detail section on the line, 22-22, ot Figs. 2 and 5, showing a screw and worm gear mechanism for raising the body of the ma chine on the truck;

Fig. 23 is a section on the line, 23-23, of Figs. l, 2 and 11b, looking toward the lett;

Fig. 24; is a side elevation oi the neck, the detachable upper forward extension thereof being omitted;

Fig. 25 is a plan of said extension;

Fig. 26 is a side elevation of said extension;

Fig. 27 is a front elevation of said exten- Sion;

Fig. 28 is a plan of the neck shown in Fig. 24;

Fig. 29 is an upright transverse section on the line, 29-29, of Fig. 4b, looking toward the right;

Fig. 30 is a plan of the lower head section;

Fig. 31 is a right-hand side elevation of said section;

Fig. 32 is an upright longitudinal section on the line, 32-32, of Fig. 30;

Fig. 33 is a plan of a binding plate to be applied to the lower head section;

Fig. 34 is a top view of the upright head section, portions being broken away;

Fig. 35 is a right-hand side elevation of said upper head section;

Fig. 36 is an upright longitudinal section on the line, 36-36, of Fig. 34A;

Fig. 37 is a horizontal sect-ion on the line, 37-37, of Fig. 4a; m

Fig. 38 is a horizontal section on the line, 38-38, of Fig. 1 (right-hand portion) Fig. 39 is a section on the line, 39-39, of Fig. 45, looking toward the lett, portions being broken away.

Referring to said drawings, fi designates the truck. B designates the longitudinal body which is movable up and down on the truck. C designates the neck which is supported on. the forward end of said body and rotatable on an axis which is horizontal and parallel to the body. B, and the track rails, R. lD designates the head which is supported by said neck and rotatable thereon through approximately 180 degrees on an axis which is perpendicular to the axis of the neck.' E designates the tongue.

The truck comprises supporting or traction wheels A1, which are in the t'orm of ordinary mine car wheels and mounted on axles A2. A3 is a horizontal platform supported upon said axles and upon which is supported the body, B. shown in the form of a rectangle with downward-directed flanges along its four edges. To each side flange ot' the platform is bolted the lower portion of an upright cast metal side member, A4, comprising two guide standards, a4, and an upright tube or barrel, A29. Fach of said guide standards is provided with an upright channel, A5, directed toward the corresponding standard at `the opposite side of the truck platform. The body, B, rests between said side members and has upright tongues, B1, extending into the channels, A5, ot' said guide standards so as to permit up and down movement ot said tongues in said channels. Said channels and said tongues are shown T-shape in crosssection, in order that said tongues and standards may engage each other to resist relative lateral movement. rlhe tongues, B1, are supported upon upright side walls, B2, of the body and extend downward below the bottom oit the body, B, as shown in Figs. 8, 9 and 10.

r. t the forward end of the body is a front cross wall, B3. At its middle the upper portion of said wall is cut out to form the lower half of a bearing, B4.

Approximately midway between its 'front and rear ends, the body has a rear cross wall, B5, which has a circular opening, B5, in horizontal axial alinement with the bearing, B4, in the cross wall, B5.

A top plate, B7, rests upon the cross walls, B3 and B5. Said top plate is secured in position by bolts, B8, extending downward through said plate into the cross walls and also into the bottom o' the body, B, and also horizontally through the rear iiange ot the top plate into the upper portion oi the rear cross wall, B5.

At the middle of `the forward edge of the top plate is a downward extension, B9, litting into the opening in the front cross wall, B3, and having in its lower end a halt circular recess which forms the upper half of the bearing, Bt, already described.

In the bottom of the body, B, a little way forward ot the rear cross wall, B5, and on the middle ot the upright plane ot said body is an upright bearing, B10 (see Figs. da. Lib, 7, 8, 9, and 10) in which rests an upright shaft, A, Below said bearing is an upright housing, A7, having an upper annular horizontal flange, A5. secured against the lower tace of the platform by'ineans of bolts or screws, A9. In the bottom of said housing rlhe platform is llO is a bearing, A1", which receives the lower end of the shaft, A". On said shaft, just above said bearing is a worm gear wheel, A11. which meshes with a worm wheel, A12, on a shaft, A11, resting in bearings, A12, formed in the housing, A1. Said shaft, A11, rests also in a bearing, A1, extending downward from thc truck platform. (Figs. 4, 1T and i8.) On the rear end of said shaft is a bevel gear wheel, A12.

Adjacent the gear wheel, A1, on the rear axle, A2, are supported two bevel gear wheels, A11, facing toward each other and slidable lengthwise on the shaft and held against rotation on the shaft by a feather, A12. Each of said gear wheels has a grooved hub engaged by an arm, i 111, on a shift lever, A20. By means of said lever and said lever arms, said wheels, A11, are spaced from each other so that either of said wheels may be brought into mesh with the gear wheel, A1, or both moved out of engagement with the wheel. A1, By means of the shaft, A, and A12, and the axle, A2, and the gear wheels associated therewith, the axle, A2, may be rotated in either dire'tion, at the will of the operator, for propelling the truck forward or backward. Power is transmitted to the shaft, A, as will be hereinafter described.

At the rear of the rear cross wall, B5, a motor, B11, is seated upon the floor of the body, B, and has a horizontal rotary axle, B12, in axial alinement with the bearing, B1, in the front cross wall, B3; but said axle ends before reaching said cross wall. Said axle has a bearing. B13, on a horizontal, transverse bridge, B11, supported by said si de walls of the body. B. Near the motor and at the forward side of the rear cross wall, B, is a bevel gear wheel, B15, surrounding the axle, 12. and immovably keyed thereto.

Surrounding the shaft, A, is a sleeve, A21, slidable up and down on said shaft, but held against rotation on said shaft b v means of feathers. A22, extending into corresponding grooves in said sleeve. Surrounding the sleeve, A21. is another sleeve, A23, which is slidable up and down on the sleeve, A21, but held against rotation thereon by means of feathers, A21, formed near the sleeve, A21 and extending into corresponding grooves on the sleeve. A22. At opposite sides, the sleeve, A22, has upright interior channels, A21. At the upper end of the sleeve, A21, a fixed stud, A2, extends from the sleeve, A21, into one of the channels, A21; and at the lower end of the sleeve, A23, a stud extends from said sleeve into the channel, A25. Then the sleeve, A2, is lifted, the lower studs, A21, are carried upward against the upper studs, A2, so that when there is further movement of the sleeve, A22, the sleeve. A21. is engaged and carried upward simultaneously with the sleeve, A23. The upper end of the sleeve, A211, is joined immovably to a circular plate or disk, A22. When said disk is rotated, said sleeves and the shaft, A, are correspondingly rotated, regardless of the elevation of the disk, A22. The purpose of said sleeves is; to maintain gear connection between the motor axle, B12, and the truck sha tit, A11. regardless of the elevation of the body, B. The sleeve, A23, rests rotatably in a bearing, B10, and the plate or disk. A22, rests upon and is supported by the upper end of said bearing.

An annular internal gear wheel, B11, lies tlatwise upon the plate, A22, and is concentric with shaft, A, and is secured to the plate, A22, b v means of rivets, B18. Immediately above the, gear, B11, and on the same axis is another annular internal gear, B111. which is a little larger than the gear. B11, and which is held against rotation by brackets, B211. supported by the side walls of the body, B.

lithin the internal gears, B1T and B111, and resting upon the plate, A22, is an eccen tric wheel, B21. extending to the upper level of the gear B11. A stud, B22, extends downard from the eccentric wheel, B21, into a bearing, B21, on the axis of the shaft, A6. An eccentric gear. B22. loose v surrounds the eccentric wheel. B21, and meshes with the internal gear. B11. Also loosely surrounding the eccentric wheel, and resting upon the eccentric gear, B22, is a. similar eccentric gear. B21. The gear. B21. is secured to the lower gear wheel. B22, b v means of rivets, B2, and it is a little larger in diameter than the eccentric gear. B22. so as to permit meshing with the upper internal gear, B19. Upon the upper face of the eccentric wheel` B21, is a bevel gear. B21, meshing with the bevel pinion, B11", already described as surrounding the motor axle, B12. adjacent the rear cross wall B7'. The bevel gear wheel. B27, iS secured to the upper cani wheel, B25, by means of screw bolts. B221. The gearing thus described is already known to the art as an epieyclc gearing. ln the present structure it is employed for transmitting motion from the motor axle to the upright shaft, A, at a reduced velocity.

lt is to be observed that this gearing is to be used only when it is desired to move the machine bodily forward or backward on the track. Vhen it in desired that the machine shall remain stationary while the motor is in action. the shift lever. A2, is so set as to bring both bevel gear wheels, A11, out of engagement with the bevel gear wheels. A1, on the truck shaft, A1,

0n each side wall of the truck is a fixed upright barrel, A 211. which is interiorlv screw threaded to receive a screw shaft` B24. The top plate has a bearing, B25, through which the upper end of said shaft extends. Below said bearing, said shaft has an annular shoulder, B3, abutting against said bearing. The upper end of said shaft is surrounded by a worm gear wheel, B31, which meshes with a worm, BSS, on a transverse horizontal shaft, B3, resting in bearings, B4. rEhe rotation of said shaft rotates the worm gear wheels, B31, and the screw shafts, B34, whereby the latter moves up or down, according to the direction of such rotation. As they are moved upward they lift the top plate, B1, of the body, B, and since said plate is bolted to the remainder of the body, the body and all the parts supported thereby-the neck, head, and tongue, are lifted.

@n the shaft, B3, are two bevel gear wheels, B41, directed toward each other and engaged by a shif" lever, B42, which engages the hubs of said gearwheels in such manner as to permit their rotation, Both of said gears are slidable endwise upon said shaft; out a feather, B43, on said shaft compels the rotation of said gears with said shaft. Below said shaft and between said bevel gear wheels, is another bevel gear wheel, B44, mounted on an upright shaft, B45, resting in a bearing, B4, formed on the top plate, BT. On the lower end of said shaft, B41", is a bevel gear wheel, B447, which meshes with the bevel gear wheel, B15, already described as being fixed on the motor axle, B12. The bevel gear wheels, B41, are spaced from each other far enough to permit placing both out of engagement with the bevel gear wheel, B44. By moving the shift lever horizontally, either of the wheels, B41, may be put into engagement with the wheel, B44. TWhen one of the wheels, B41, is in engagement with the wheel, B44, the screw shafts, B34, are moved upward and the body of the machine is thenlifted, and when the other of said wheels, B41, is put into engagement with the wheel, B44, said screw shafts and the body of the machine are lowered. TWhen both of the wheels, B41, are out of engagement with the wheel, B44, the worms, B33, on the shaft, B39, lock the screw shafts against rotation, so that the body must remain at the eleva tion at which it, at the time, stands.

rEhe chief purpose in thus raising and lowering the body, B, is to provide for bringing portions of the head.v and neck, and tool support below the level of the supporting faces of the machine (the lower faces of the wheels, A1) and to the lower level of the track which supports the truck during the cutting operation, in Order that the cutting tool may cut at the level of the floor upon which the track rests.

In describing` the neck and the head, for convenience, it will be assumed that the neck has been so turned on its axis as t0 bring these parts into the position shown in Figs. 1, 3, and 4 of the drawings, so that the portion of the neck which extends the farther floor, such portion being, for convenience,.

designated the lower portion of the neck, while the portion which is then above said longitudinal axial line is designated the .upper portion of the neck.

The neck, C, comprises a rigid horizontal journal, C1, preferably integral with the other portions of said neck, which journal rests in the bearing, B4, which, as above described is formed in the forward cross wall, B3, and the downward extension, B9, of the top-plate. Gn the rear end of said journal is a worm gear wheel, C2, which bears against the rear face of the transverse wall, B3. Above the level of the axis of the journal, C1, the neck extends only to the height of the top-plate, B7. Below said axis, the neck (when the body is in its lower position) extends downward below the level of the track rails, R, and close to the portion of the floor which is in front of said rails, the neck thus extending below the supporting faces of the machine or the upper surface of the track rails as much as the sum of the height of the track rails plus the ties, T, upon which the rails are supported.

The neck, C, has a lower forward extension, C3, and an upper forward extension, C* secured thereto. On a common axial line which is perpendicular to the axis of the neck, the extension, C3, has a bearing, C5, and the extension, C4, has a bearing, CG. rl`he extension, C4, is detachable from the upright portion of the head. Gn each lateral edge, said extension has an upright groove, C7, each being directed toward the other and receiving corresponding upright tongues, C8, fixed on the neck. The extension, C4, is put into position by placing it above the main portion of the neck, (when the extension, C3, is in the lower position) and then moving said extension downward, the grooves, C7, receiving the tongues, C8.

At approximately the height of the bottom of the body, A, is a bearing, C9, which is horizontal and transverse to the length of the machine and receives a shaft, C1. The lower half of said bearing is formed on the front face of the main portion of said neck while the upper half of said bearing is formed on the detachable forward extension, C4, of the neck. When, during the descent of said extension, the upper half of said bearing meets the lower half, the descent of said extension is arrested. In other words, the lower half of said bearing forms a stop .for determining the rest position of said forward extension. In axial alinement with the axle, B12, of the motor is a shaft, C11, extending-through and rotatable in the journal, C1, of the neck, C. On the rear end of the shaft, C11, is a tooth-clutch member, 

